It's a bug with the AMD chips.
ack-ack
but if it was a "bug" on AMD multi core cpu's........... then how come I am able to have full use of my quad core ( all 4 cores ) in my DVD burning and encoding/converting......... and have full use while I am running my AutoCad, or many other software that are able to utilize multi core processors ??? if it was a "bug" I would not be able to do these things, I would only have the same cpu ability I have in Aces High
Aces High is the only piece of software I have on my PC that does not use my AMD cpu to it's full potential of 2 of the 4 cores available.......
not that it really matters, I am still able to max everything out in Aces High full graphics, advanced graphics, hires 2048 textures, 4096 shadows ( using the 8192 shadows I will experiene about a 5 to 8 fps drop at times ) while running 1920 x 1080 screen res at 60 Hz
Thermaltake Level 10 GT Case
Thermaltake TR2 RX 850watt Modular PSU (single rail, 80+)
AMD Phenom II 975 X4 3.6 GHz Quad Core CPU
CORSAIR CAFA70 120mm Dual-Fan CPU Cooler
ASUS M4A89TD PRO/USB3 AMD AM3 Motherboard
16 Gig's of Corsair Vengance 1600 MHz DDR3 Sys. Memory
WD Velociraptor 450Gig HD SATA III 6.0 Gb/s
XFX HD6870 1 Gig GDDR5 Videocard
Creative SB X-Fi Xtreme Fatality Pro Series PCI Sound Card
ASUS BluRay Burner
LG BluRay Reader / DVD ReWriter
ASUS VE27Q 27" WideScreen HD LCD Monitor
This PC runs Aces High with everything maxed out ( except the shadows are 4096 instead of 8192 ), all I have left to do is install my 128 gig Crucial M4 SSD ( CT128M4SSD2 128 GB SATA III 6.0 Gb/s )...... to make it have nearly the same setup as my Intel i7 PC........
after I do this I doubt I will see any difference at all between this AMD based PC and my ASUS i7-2600K Intel PC that has the exact same components
...(except it has an XFX HD6950 2GB VideoCard , ASUS Xonar PCI Sound Card and a 1.5 TB Hitachi SATA III hard drive, HannsG 27.5" 1900x1200 Monitor ........ to where my AMD has the 450GB Velociraptor, Creative X-Fi PCI soundcard and XFX 6870 1BG VC, ...... )
even without the SSD my AMD 975 seemed to be nearly right there neck-n-neck with the INTEL i7-2600K although the i7 had an SSD ( same as listed above for the OS / boot drive )
playing Aces high, burning Video, mixing Audio, usinf Cad, etc......
TC